Condensed Consolidated Statements of Comprehensive Income (Loss) (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Statement of Comprehensive Income [Abstract]
Net income	$ 763	$ 698
Other comprehensive income (loss), net of tax
Change in unrealized appreciation (depreciation) of fixed maturity securities on which allowance for credit losses was taken	(1)	4
Change in unrealized appreciation (depreciation) of all other investments	(616)	425
Change in the discount rates used to measure traditional and limited payment long-duration insurance contracts	4	6
Change in foreign currency translation adjustments	(121)	194
Change in retirement plan liabilities adjustment	6	7
Other comprehensive income (loss)	(728)	636
Comprehensive income	35	1,334
Less: Comprehensive income attributable to noncontrolling interests	0	1
Comprehensive income attributable to AIG	$ 35	$ 1,333